anv: Move push constant allocation to the command buffer

Instead of blasting it out as part of the pipeline, we put it in the
command buffer and only blast it out when it's really needed.  Since the
PUSH_CONSTANT_ALLOC commands aren't pipelined, they immediately cause a
stall which we would like to avoid.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/src/intel/vulkan/genX_pipeline_util.h b/src/intel/vulkan/genX_pipeline_util.h
index ecbe436..2ed55e0 100644
--- a/src/intel/vulkan/genX_pipeline_util.h
+++ b/src/intel/vulkan/genX_pipeline_util.h
@@ -205,18 +205,6 @@ emit_urb_setup(struct anv_pipeline *pipeline)
    }
 #endif
 
-   unsigned push_start = 0;
-   for (int i = MESA_SHADER_VERTEX; i <= MESA_SHADER_FRAGMENT; i++) {
-      unsigned push_size = pipeline->urb.push_size[i];
-      anv_batch_emit(&pipeline->batch,
-                     GENX(3DSTATE_PUSH_CONSTANT_ALLOC_VS), alloc) {
-         alloc._3DCommandSubOpcode  = 18 + i;
-         alloc.ConstantBufferOffset = (push_size > 0) ? push_start : 0;
-         alloc.ConstantBufferSize   = push_size;
-      }
-      push_start += pipeline->urb.push_size[i];
-   }
-
    for (int i = MESA_SHADER_VERTEX; i <= MESA_SHADER_GEOMETRY; i++) {
       anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_VS), urb) {
          urb._3DCommandSubOpcode       = 48 + i;